Recommended for applications requiring controlled solvent behavior, such as high-performance liquid chromatography (HPLC), the Hplc Guard Columns (Analytical) Nucleodur ® C 18 Pyramid offer effective protection against contaminants that may harm the main HPLC column. With a particle size of 5 μm and a pore size of 110 Å, these fully porous particles (FPP) provide a specific surface area of 340 m²/g, ensuring optimal separation efficiency. The reversed phase (RP) separation principle, combined with octadecyl (C 18, ODS) modification and polar endcapping, ensures excellent compatibility with acetonitrile-water eluents. Furthermore, the pyramid structure enhances the durability of the column under pressures up to 600 bar, making it suitable for various analyt

• Category: Pre-column systems for HPLC
• Pore volume: 0.9 ml/g
• Pressure stability: 600 bar
• Column length: 4 mm
• pH stability: 1,0-9,0
• L x Ø internal (column): 4 x 2 mm
• Pore size: 110 Å
• Endcapped: yes
• Eluent in column: Acetonitrile - Water
• Column inner diameter: 2 mm
• Separation principle: Reversed phase (RP)
• Carbon content: 14 %
• Particle size: 5 µm
• Surface chemistry: Octadecyl (C 18 , ODS) modification, Polar endcapping
• Specific surface according to BET: 340 m²/g
• Particle type: Fully porous particles (FPP)